Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Trevor Lawrence Kowalchuk0
Date of Patent
May 20, 2008
0Patent Application Number
111947840
Date Filed
August 1, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A seed planting unit provides a manifold connecting a vacuum to multiple metering disks. The manifold includes valves to sequentially connect the manifold branches to the seed unit so as to moderate the peak air flow necessary to be handled by the vacuum source reducing horsepower drain and cost of the vacuum source itself.
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